Here is a link to feet----
http://www.sewingpartsonline.com/sea...manufacturer=6
Way at the bottom of the page.
Not sure yours is there.... and yes they are expensive.
Did you contact the person that you bought the machine from and see if they just forgot to pack it? Or was that part of the description on the auction? If that wasn't disclosed you may have recourse to get your money back.
Another site:
http://shop.sew-classic.com/searchqu...ywords=bernina